Originally posted by Mharr:

Compression isn't the only quality a file can have though. A more raw format can be faster to access, cause less cpu load, or allow partial on-the-fly changes. Redundant data can be intentional to allow self healing.

of course, it is just a crude measurement, as i said the first time. Without hex editing it and reverse engineering it, this gives a less enthused person a data point, is all.

if it were binary record based with on the fly changes it would not take long at all to do world saves as it would only need to write what you had changed, which in the grand scheme of the entire world is going to be near zero changed records per save cycle.

self healing is fine but using tricks like CRC you can repair somewhat without full redundancy. The whole point of NTFS is that it avoids disk errors, though. If there is corruption, it was bug induced, most likely, rather than hardware problems or network hiccups.